Spent a lot of time on the Ready and Racer
That is a cool looking ship.
Our Navy family is growing!
#HMCSMaxBernays was delivered today marking an important milestone for your Navy -- a new ship for our fleet, and a new unit for the crew to call their own!
MAX BERNAYS is our third Arctic and Offshore Patrol Ships. These multifunctional vessels enhance Canada's Arctic presence, and increase our capability of participating in a wide variety of international operations, and undertake a diverse range of missions worldwide
... when MARS our fellow-member, here, was in command.
The AOP's is a light icebreaker with a PC 5 hull and PC 4 bow (ice class explained here Polar Class - Wikipedia)
@KevinB, did you just out Santa Clause’s sub-ice toy factory installation?
I think they are not so different. My image is a forecast for Aug 18th by the US Navy while yours appears to be up to date from University of Bremen. The University of Bremen tops off at greater than 50 cm while the US Navy has greater detail up to a possible 5m
My only point was there are a lot of maps out there, and the Multi-year ice seems to vary on many of them.
Where do you see that? Ok when I first read your post I thought it said 5m. The graphs are going to differ as they are using different algorithims to extrapolate over area. They are not meant as navigation tools. The Bremen doesn't have the resolution to say that it differs to me
An obvious observation is; before you can have multi-year ice you need annual ice that doesn't melt. For the last several years we have had relatively mild summers so the multi-ice has tended to diminish. Much of the loss in ice was produced by strong currents and winds that caused the ice to be driven away from sheltered areas and out into the open waters where the currents and temperatures combined to break it up. This year, for the first time in a while, we have a significant amount of first year ice remaining which will harden further and contribute to the ice pack this winter. Another year or two of this and we will be back where we were in the 70s. What goes around comes around.Fair point.
I was just trying to show that multiple sites had some different data - and while the Bremen map didn’t have more info on greater thicknesses (and suffered from @Good2Golf Santa Blackout Zone) the coverage of the ice seemed to differ.
View attachment 73315
As the NOAA data shows - it may be moot anyway as Multiyear ice is on a significant decline.
Yes and I think that ice will not be a significant deterrent to AOPS conceived deployments. Time will tell on how hard they get pushed at the beginning and end of the melt seasonFair point.
I was just trying to show that multiple sites had some different data - and while the Bremen map didn’t have more info on greater thicknesses (and suffered from @Good2Golf Santa Blackout Zone) the coverage of the ice seemed to differ.
View attachment 73315
As the NOAA data shows - it may be moot anyway as Multiyear ice is on a significant decline.
For ice thickness and age are the important measurements. Icebreakers push ice downwards to break it using the weight of their hull. Its easier to push down into water then across into more ice. Older ice is more dense, which is why we use the "multiyear ice" label. Also "ice inclusitions" generally referes to bits of multiyear ice inside a bunch of first year ice. Harder rocks mixed into the soil so to speak. AOPS is rated to 1m thick first with ice inclusions. In practice it was engineered to do better than that.
